Lake ecosystem productivity, defined by the rate of biomass synthesis, is believed to be limited by nutrient availability.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/light-limitation-nutrient-poor-lake-ecosystems
[2] http://admin.indiaenvironmentportal.org.in/category/author/jan-karlsson
[3] http://admin.indiaenvironmentportal.org.in/category/author/pr-bystrm
[4] http://admin.indiaenvironmentportal.org.in/category/author/jenny-ask-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lake-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecosystems
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lakes
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-impacts
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biomass